Figure 1

Figure 2

Figure 3

Figure 4

Patient, tumour and therapy characteristics (number of patients n = 24, number of irradiated metastases n = 28), one patient with germ cell tumour not included
| Age (Years) | ||
|---|---|---|
| Median and range | 67.5 (28–81) | |
| Sex (n = 24) | ||
| Female | 7 | 29.2% |
| Male | 17 | 70.8% |
| Histology (n = 24) | ||
| Prostate cancer | 11 | 45.8% |
| Renal cell carcinoma | 3 | 12.6% |
| Urothelial cancer | 2 | 8.3% |
| Other* | 8 | 33.3% |
| Localization of irradiated metastasis (n = 28) | ||
| Spine | 20 | 71.4% |
| Rib | 4 | 14.3% |
| Other (sternum, femur 2x, sacral bone) | 4 | 14.3% |
| Oligometastatic vs. diffuse metastatic disease (n = 24) | ||
| Oligometastatic disease | 16 | 66.7% |
| Diffuse metastatic disease | 8 | 33.3% |
| Indication for radiation therapy (n = 24) | ||
| Oligometastatic disease | 15 | 62.5% |
| Oligoprogression under systemic therapy | 4 | 16.7% |
| Radiation resistant histology | 3 | 12.5% |
| Intraspinal tumour component | 2 | 8.3% |
| Systemic therapy (n = 24) | ||
| No systemic therapy | 4 | 16.7% |
| Chemotherapy or immunotherapy | 10 | 41.7% |
| Hormonal therapy | 10 | 41.7% |